Species: ? lonzeensis (DOLLO, 1883) KUHN, 1965 (nomen dubium)
Etymology:
= Megalosaurus lonzeensis DOLLO, 1883, (nomen dubium)
= Ornithomimidorum gen. a lonzeensis (DOLLO, 1883) HUENE, 1926 (nomen oblitum)
= Struthiomimus lonzeensis (DOLLO, 1903) KUHN, 1939

Holotype:

Locality: Lonzee, near Gembloux, Namur Province, Belgium.

Horizon: Glauconie argileuse.

Biostratigraphy:

Age: Santonian Stage, Lower Senonian Subepoch, Lower Gulf Epoch, Lower Late Cretaceous.

Material: Ungual phalanx.

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Species: tenuis MARSH, 1890 (nomen dubium)
Etymology:
= Struthiomimus tenuis (MARSH, 1890) OSBORN, 1916 (nomen dubium)

Holotype: USNM 5814

Locality: Near foot of the bluffs on the south banks of the Missouri River, opposite Cow Island, Fergus County, Montana.

Horizon: Judith River Formation.

Biostratigraphy:

Age: Judithian age, Campanian Stage, Senonian subepoch, Upper Gulf epoch, Late Cretaceous.

Material: Distal half of left metatarsal III.